To determine which balloon company is the better choice for the O'Donnells, we can set up a system of equations to calculate the total cost for each company based on the number of balloons ordered.
Let \( x \) be the number of balloons ordered, which is 30.
For Balloon Express:
- Cost per balloon: $2
- Delivery fee: $10
The total cost for Balloon Express can be calculated as follows: \[ \text{Total Cost}{\text{Express}} = 2x + 10 \] Substituting \( x = 30 \): \[ \text{Total Cost}{\text{Express}} = 2(30) + 10 = 60 + 10 = 70 \]
For Balloon Mania:
- Cost per balloon: $1.50
- Delivery fee: $20
The total cost for Balloon Mania can be calculated as follows: \[ \text{Total Cost}{\text{Mania}} = 1.5x + 20 \] Substituting \( x = 30 \): \[ \text{Total Cost}{\text{Mania}} = 1.5(30) + 20 = 45 + 20 = 65 \]
Now we can compare the total costs:
- Total cost for Balloon Express: $70
- Total cost for Balloon Mania: $65
To find out how much the O'Donnells will save by choosing Balloon Mania over Balloon Express: \[ \text{Savings} = \text{Total Cost}{\text{Express}} - \text{Total Cost}{\text{Mania}} = 70 - 65 = 5 \]
Thus, the O'Donnells should choose Balloon Mania and they will save $5.
The answer is: Balloon Mania; $5